Refrigerator car construction



Feb. 23, 1943. K E, zElDLER 2,312,016

REFRIGERATOR CAR CONSTRUCTION vFiled April 6, 1940 5 Sheets-Sheet-1 @NIN [n1/enzimi Kuri' E. Z eid Zet Feb. 23, 1943. K. E. zElDLER 2,312,016

REFRIGERATOR om CONSTRUCTION Filed April 6, 1940 5 Sheets-Sheet 2 Inventor: Karl' E.Zezdler Htzforn Feb. 23, 1943. K, E, ZEDLER 2,312,016

REFRIGERATORCAR CONSTRUCTION Filed April 6, 1940 5 Sheets-Sheet 3 hzuen'ah/ KurZ'E. Zez'dlef l K. E. ZEIDLER REFRIGERATOR CAR CONSTRUCTION Filed Aprn s, 1940 5 sheets-sheet 4 I 1li-Tfr ama Inventor.- KLLI'Z' E. Zeidlef ia' 'ill-'1.15235'.

Feb. 23,y 1943.

Feb 23 1943- K. zElDLER 2,312,016

REFRIGERATOR CAR CONSTRUCTION Filed April 6 1940 s/sneets-sneet 5 1?-356 ai l; i v

m i?? Inventor:

Kuri' E. AZz'alef Patented Feb. `23, 1943 REFRIGERATOR CAR CGNSTRUCTION Kurt E. Zeidler, Chicago, Ill., assignor to Standard Railway EquipmentMannfacturlng Company, I Chicago, Ill., a corporation of Delaware Application April 6, 1940, Serial No. 328,203

21 Claims.

The invention relates to railway rolling stock and more particularly to so-called refrigerator cars which are used to transport perishable commodities, such as vegetables, fruits, berries, frozen foods and fish. Such commodities must be maintained at a substantially even temperature to avoid decay. Heat or refrigeration is applied to the commodity while in transit depending upon the weather. Certain commodities (such as potatoes and oranges) generate heat and gases which must be removed Vby ventilation. A railway car, therefore, to haul perishablecommodities must be arranged to cool, heat or ventilate the commodity while in the car. This applies, of course, if the car is running or standing still.

Various fruits, such as oranges, lemons and grapefruit from California and Florida, apples from Washington and Oregon, and various vegetables from such states as California, Colorado, Illinois and Georgia are loaded into the refrigerator cars and shipped; i.; e., the cars actually start moving with destination unknown and without any consignee. To facilitate selling the commodity while enroute, grades for quality have,

been established. Units for volume have lalso been established by adoption of a standard size box for each fruit and the size of the fruit is designated by the number of that fruit in the box (which is stencilled on each box) the number of such boxes lwhich can be loaded in a standard size refrigerator car is a unitf To be more specic, the inside dimensions of a conventional end bunker refrigerator car are approximately 40 feet long, 8'3" wide and 7 feet high, and an ice bunker is positioned at each end of the car rso that the loading space between the veloped by my assignee which is described and claimed in Bonsall Patent No. 2,136,999 of November 15, 1938, wherein the refrigerant containers are positioned adjacent the ceiling of the car with drip pans spaced therebelow. Air in the space below the refrigerant containers, being cooled by the refrigerant in the containers (preferably ice or ice and salt) flows through vertical iiues into a space below a foraminous secondary flooring below the ylading and coming into contact v with the lading, is warmed thereby and rises to bunkers is about 33 feet. Such a car will hold and refrigerate 462 boxes of oranges or 420 boxes of lemons from California and such number of boxes constitutes a ,unit of the specific fruit of a known grade and size.

When the owner (usually through a cooperative association) sells his fruit, the shipment is diverted while enroute to the purchaser. It requires approximately seven days to transport fruit from California to Chicago; ten days to New York and twelve days to Boston; this system allows the owner to take advantage of changing market conditions. If the commodity is not sold enroute it is consigned to one of the several perishable commodityauction markets in the larger cities where it is sold .before it becomes unusable. .i

A new type ofV refrigerator car hasy been dethe space below the refrigerant container, where it is cooled by contact with the refrigerant and repeats the cycle. This is called lateral or crosswise air circulation. j

`The Bonsall improved refrigerator car eliminates the necessity of the end ice bunkers, thus increasing the available lading space from 33 feet to 40 feet without increasing the train length or overall length .of the car. Furthermore, in the conventional end bunker car, hereinbefore described, it is usually necessary to leave'at least two feet between the top of the lading and the ceiling of thecar for the warmed air to return to the end bunkers, whereas in Bonsalls top bunker car the lading` can be loaded up to the ceiling, thus materially increasing the volume and weight of the lading without decreasing the efficiency of the refrigeration of the lading (in fact, tests show better refrigeration). Again to be specific: The conventional forty foot, `end bunker car holds 462 boxes of orangesl (which is a unit for that particular fruit), whereas a Bonsall top bunker car was actually loaded and shipped with 840 boxes of oranges, or one and' eight-tenths units. The sizes and weights of the boxes are commercially recognized standards.

One of the objects of the invention is to provide a refrigerator car :that will hold and refrigerate more than an-established unit of lading and which shall include means to segregate one unit from the'remainder of the load so that said unit may be loaded and unloaded without disturbing the remainder of the load. The said remainder may be another unit.

Another object is to provide an insulated partition so that the commodities on opposite sides of the partition may be maintained at different temperatures.

Another object is to provide a partition which has both great strength and great resiliency so that a shifting lading within either compartment is protected from injury dueto sliding with great impact against a rigid partition.

Another object of the invention is to adapt the outside air.

above-mentioned partition as a means to resist weaving of the car during service movements thereof. There is a tendency at certain times for a` railway car to get out of square; i. e., for a plan view of the car to assume the shape of a parallelogram instead of a rectangle. The partition rigidly attached to the side walls and also possibly to the underframe and/or roof adds to the the car structure, and a still further object is to provide means associated with the corner construction to hold the insulation in the intended position. A l

Another object is to use a corrugated plate as the principal structural member of the partition v and to space the lower edge of the corrugated plate a substantial distance above the underframe of the car. lThe connection between such corrugated Vplate and the underframe is a member adapted to reduce heat flow between the` underframe and the corrugated plate.

Other objects and advantages of my invention will be apparent from the following detailed detion is deflected under the impact of a. shifting lading.

Another object is to insulate the above mentioned partition in such a way as to prevent the heat flow from one compartment to the other compartment. I accomplish this result by providing a continuous insulation blanket extending from the floor `upwardly into the partition and in a similar manner blankets extending continuq ouslyvfrom the roof downwardly into the partition `and fromAyeach sidewall partition. i

The design of a refrigeratorcar having overhead refrigerant containers presents the problem of providing a support for the containers. In one type of car, such as that shown in Winship Patent No. 2,182,652 of December 5, 1939, the load supporting posts are disposed adjacent` the interior of the car and are supported at their lower ends upon the underframe of the car by some insulating means; such as the pedestals of rela- 'tively small area shown in the above mentioned patent. In such a. construction having inside posts, the posts are substantially at the temperature of the interior of the car and the refrigerant containers may therefore be attached directly thereto. In the construction disclosed in the instant case, I provide the load supporting posts ad jacent the exterior of thev..car, in which position they have a temperature substantially that of the Such a. construction permits a simpler and `more rigid connection tothe underframeof the car for the reason that such connection does not have to'be insulated. From `the upper parts of thev outside posts I attach, by an insulating means hereinafter described, the refrigerant containers. I also suspend from the upperparts of the outside posts inner frame members and side flue .members which are insulated fromthe outside posts. Means are provided to brace the lower parts of the inner frame members and side flue members against swinging in pendulum fashion.

Another object of the invention is to utilize the above mentioned insulated partition to at leastpartially support the refrigerant containers inl the upper part ofthe car.

l A still further object of the invention is to provide substantially continuous insulation blankets extending longitudinally of the car at the juncinwardly into the tions ofthe floor and side walls; in other words,

at the side sills.

Another object of the invention is to'provide a continuous insulation blanket of substantially uniform thickness extending from the side wall of the` car around the corner into the end wall of the car. A further object is to provide such corner construction so that the end lining and side lining are rigidly supported and secured to scription by referring to the accompanying drawings. Y

Fig. 4.is an enlarged view of the lower left,-

hand corner of Fig.^3.

Fig. 5 is a plan view on line 5-5 of Fig. 6 showing the connectionv of the partition Yto ak side wall of the car.

Fig. 6 is yan elevational View of the structure shown in Fig. 5. I

Fig. 7 is a plan View on line vl--l of Fig. 8 of a means to connect the innery side plate to an outer side post.

Fig. 8 is an elevational view of the structure shown inAFig. 7.

Fig. 9 is a view similar to Fig. 4 showing `a modified construction.

Fig. 10 is a view similar to a part of Fig. 2 showing a modified form of partition.

Figs. 11 and 12 are views similar to parts of Figs. 3 and 1, respectively, showing aimodied i form' of connection between the partition and the underframe, the floor insulation having been omitted from Fig. 11 for clarification.'

Fig. 13 is a view similar to a part of Fig. 1 showing a modified connection of the partition to the roof of the car.` o

Fig. 14 is an enlarged view of a corner of the car shown in Fig. 2.

The general parts of the refrigerator car shown are insulated roof A; side walls B; yend Walls C; floor D;hatchesfE,refrigerant containers F; side `walll flues G; foraminous floor rack H and space Jfbetween rack H and door D. A refrigerant container F is positioned directly below the roof A and adjacent the side wall B.'

A drip pan K is provided below the container F and a partition L is secured in an upstan'ding position at the edge of the drip'pan K. The drip pan K and partition L cooperate with the roof 4A and side wall B to form an enclosing structure M around the container F, an air inlet opening N `being provided by spacing the partition L from the roof A. An air'discharge opening P which leads to the flue G is formed by spacing the drip pan K from the wall B. Cars of this type commonly have a row ofrrefrigerant` containers F near each side wall B and spaced apart at the center of the car. The partitions L are also spaced apart to form a duct Q which communicates between the lading chamber R and openings N.

Air circulation is as follows: Air in the lading chamber R is warmed by contact with the lading and rises through the duct Q to enter the enclosing structures M through the air inlet openings N. The air is cooled by contact with the refrigerant containers F and falls by reason of its greater density through the discharge openings P and flues G to the space J whence it rises through the rack H to the lading chamber R.

As shown most clearly in Fig. 3, the underframe 2 of the car comprises a center sill 3 having laterally extending cross members 5, such as bolsters, cross bearers and cross ties. The side sills 6 are supported upon the outer ends of the various cross members preferably by connect- I ing pieces, such as the channel 9 shown at the left of Fig. 3, or the bulb angle 9 shown at the right of Fig. 3. Outer vertical side posts II and side sheathing I2 are secured in an upstanding position to each of the side sills 6, the side sheathing I2 being secured to the spaced apart posts I I. Outer side plates I4 are mounted upon the upper ends of the posts I I and the outer roof structure I5 extendsbetween and is supported by the outer side plates I4. The outer roof structure I5 preferably is comprised of a plurality of sheets I1 having upstanding flanges at their adjacent edges and carlines I8 in the form of inverted channels overlying the flanges of the roof sheets I1 and being secured thereto. At each corner of the car is an outer corner post extending between and secured to the side plate I4 and side sill 6. The side sheathing I2 is secured to the corner post 20 and an end wall sheathing 2I extends between and is secured to the corner posts 20 at opposite sides of the lcar. Any type of corner post and end wall sheathing may be used, but a preferable'fconstruction embodies a type shown in patent to Jumper et al. No. 2,185,168 issued December 26,*1939.

The interior of thecar is divided into two lading compartments 24 by a partitionk 25 .extending between the side walls B of the car. The compartments 24 may be of equal or unequal size depending upon the use for which the car is intended. The principal structural member of the partition 25 is preferably a plate 21 having horizontally disposed corrugations 28 which extend substantially between the side walls B. The plate 21 shown in the drawing is similar to the end wall sheathing of the car, as shown in the above mentioned Jumper et al. patent. The posts 30 which function both as side wall structural members and as anchor members of the partition 25 are preferably hollow section members which may be formed, as at the corners of `the car, by a W-shaped member 3| secured at one leg 33 thereof to the side wall sheathing I2 and to the ange 35 of the plate 21 and at the other leg 34 to the corrugated plate 21. The flange 36 is preferably jointed to the plate 21 by a curve 31 of relatively large radius and the corrugations 28 merge into the flanged part of the sheet. There is thus formed a structural member 38 at each end of the corrugated plate 2 1 which will cause said plate to deflect as a semirestrained beam when the lading exerts a force upon the partition 25. rIhe box section posts 30 are also relatively rigid and thereby prevent bowing in of the side walls B of the car when the partition 25 receives an impact. At the upper edge of the plate 21 there are two angles 35 arranged back to back on opposite sides of the lil' plate 21 and having their horizontal legs 38 extending laterally in opposite directions. The angles 36 are preferably attached to the outer side plates I4, as shown at 39 in Fig. 3. The lower edge of the corrugated plate 21 preferably has angles 40 arranged in a manner similar to the top angles 35, which lower angles are secured to the center sill 3 and side sills 6.

Fig. 10 shows a modied type of partition and `the posts 42 in this modification are comprised of Z-bars 44 and angle bars 45 secured together.- The plate 41 is formed with corrugations 48which merge into the plane of the plate nearthe margins 50 thereof and the margins 59 are secured to the posts 42.

The lower edge of the plate 49 may be flanged (5I), as shown in Figs. 11 and 12, and supported by a pedestal type bracket 53 `secured to the center sill 3 of the car. This pedestal type bracket 53 is designed to have a relatively small area so as to prevent heat flow between the underframe 2 of the car and the plate 49, which heat flow would be undesirable in that it would tend to flow into the lading compartments 24. bracket 53 may be hollow and may be lled with insulation 54. The flange 5I on the plate 49 is thus imbedded within the floor insulation 58 a substantial distance above the lower surface of the'floor D and is, therefore, not materially affected by the outside temperature.

As shown in Fig. 13, the upper edge of the plate 58 may extend upwardly between the upstanding flanges of adjacent roof sheets I1. The inverted channel-shaped carline I8 thus overlies both the roof sheet flanges and the upper edge of the plate 58 and is secured thereto.

Inner side plates 63 are spaced inwardly from 61 extends between the other door post 69 and the partition 25, and the third section 10 is inserted between the rst mentioned sections 64, 81 and extends substantially between the door posts. The third section 10 may be reinforced by a splice member 12 which overlaps each of the first two mentioned sections iB4, 61 and is secured thereto.

The door posts 'I5 are preferably Z-bars 16 extending between and secured to the outer side plate I4 and side sill 6. Wooden llers 18 are preferably attached to the posts 15 to provide both insulation and seats for the doors. Angle clips 19 are secured to the upper ends of the llers 18 and to the inner side plate 53 to provide a support for said inner side plate in the vicinity of the doorway.

The end of the inner side plate 63 adjacent the partition 25 is supported by a bracket assembly 8I shown in detail in Figs. 5 and 6. The upper bracket 84 on the left side of the plate 21 comprises a vertical leg 85 secured to the plate 21, a horizontal leg 81 extending laterally from the plate 21 and a web 88, triangular in the form shown, extending between the horizontal (81) and vertical (85) legs. The upper .bracket 84 is supported by a lower bracket of similar form, but inverted so that the horizontal leg 89 of the lower bracket 90 underlies the horizontal leg 81 of the upper bracket 84 in flatwise relation therewitl.. The Vertical leg 9I of the lower bracket 80 is se cured to the plate 21. A wooden block 93 reg The upon and is supported by the horizontal lee' 31 of the upper bracket 94 and is secured thereto by the bolts 94.` An angle clip 96 is secured by its vertical leg 91 to theinner side plate 63 and has its horizontal leg 99 overlying the wooden block 93 so as to support the side plate 63. 'I'he angle clip 96 may be secured to the inner'side plate 63 by stud rivets |0| having bolts |02 on their ends for the purpose of securing the side plate 63 to the wooden block 93. The bracket assembly |04 on the right side of the plate 21 is similar to that heretofore described except that theweb |05 is of somewhat diierent form and is secured by the rivets |06 to a leg'l08 of the hollow section post 30. I have shown and described a wooden block 93, Vbut .I contemplate the use of any other rigid insulating material as a substitute for wood.

At the ends of the car theI inner side plates 63 are secured to the corner posts 20 of the car. A short angle member ||2 is secured to the corner post by a vertical leg ||3 with its horizontal leg projecting inwardly. A wooden .block ||5 rests upon the horizontal leg of the angle member ||'2 and is secured thereto. An angle clip ||6 having an outwardly extending horizontal leg ||8 overlies andv rests upon the wooden block ||5. Stud rivets ||9 may be used to secure the angle clip ||6 to the inner side. plate 6l and to securethe inner side plate .63 to the wooden block 5, as described in reference to Figs. 5 and 6.

Refrigerator cars of this general constructionl may be built without the partition 25, in which case means should beV provided to support the inner side plate 63 at desired positions along the length of the car. Supporting means suitable for this purpose is shown in Figs. 7 and 8. The post |23 shown in Figs. '1 and 8 is the conventional side wall post, such as is shown in Fig. 2.

A bracket |24 having a vertical leg |26 is secured, preferably by rivets, to the web |21 of the post |23. The bracket 24 is provided with two horizontal legs, one (|29) which overlies the post |23 to provide a further support and the other (|30) which extends toward the interior Aof the car. A wooden block |32 rests upon the horizontal leg |30 and is secured thereto`by some means, such as the bolt |33 shown. Triangular webs |35 may be provided to join the horizontal leg |30 with the vertical leg |26. The inner side plate 63 is provided with an angle clip |36 having an outwardly projecting horizontal leg |38 adapted to overlie and rest upon the wooden block- |32. tion may be used as described in reference to Stud rivets |39 and bolts |4| in combinaconnected to the vertical leg |52 of the inner side plate 63 and a third flange |54 provides an underlying support for the carline to reinforce the rivets |55. Stud rivets |51 similar to those described in reference to Figs. 5 and 6 may be used, if desired, to secure the carline brackets |46 to the inner side plates 63, as shown in Figs.

7 and 8. Laterally extending brackets |68 are secured to the carlines |45at predetermined positions between the ends thereof and are engaged by other brackets extending outwardly from the ends of the containers F. 'Ihe usualha-tches E are provided for loading refrigerant into the containers F.

The floor D of the car is supported by lonl gitudinally extending stringers |64 which extend between the cross members 5 of the underframe 2 and are attached thereto by the brackets Figs. 5 and 6 to secure the clip |36 to the inner side plate 63 and to secure the inner side plate 63 to the wooden block |32. The construction shown in Figs. 7 and 8 may be used, if desired, to utilize certain of the outer posts to provide additional supports for the inner side plate 63.

Any number and any type of refrigerant containers may be used in a car of this type. In the form shown there are four containers F in each compartment 24, two adjacent each side wall B with a duct Q therebetween at the longitudinal center of the car. Carlines |45 are disposed adjacent the ends 0f the containers F and extend between and are secured to the inner side plates 63. Any convenient means may be used to secure the carlines |45 to the inner side plates 63, such as the brackets |46 shown in Fig. 8, wherein one ange |46 is connected to the horizontal leg |49 of the inner 'side plate 63, another flange |5| is |65. The sub-oor |61, preferably ply-wood or a thin metallic sheet, rests upon the upper surface of the stringers |64. upon the sub-floor |61 and upper stringers |10 are placed upon the insulation |68 so as to com- Ypress said insulation the maximum distance,

thereby providing a substantially incompressible material between the upper (|10) and lower (|64) stringers. The upper oor surface may be either wood covered with a waterproof fabric or steel sheets joined together by some suitable means, such as that shown inrBonsall Patent No. 2,189,126 of'February 6, 1940. The floor rack |1| comprises stringers |13 extending transversely of the car and spaced apart slats |14 extending longitudinally of the car and secured. to the upper surfaces of the stringers.,|13. A gutter |16 is provided at each side of the floor D. to receive liquid. from the refrigerant containers F, which liquid fiows downwardlythrough the` side wall fiues G. If a metallic floor sheet |11 isused,

the gutter |16 is preferably made of a metallic bers adjacent the partition 25 and at the cornert of the car are preferably W-section members |84, |86. Av plurality of metallic sheets |81 having outwardly projecting panels |89 formed therein are also suspended from the inner side plates 63.

The sheets |81 extend between and are secured to the inner frame members |83. Means are provided to prevent the inner frame members |83 and the sheets |81 swinging pendulum fashion from the inner side plate 63. In the modification shown in Figs. 3 and 4, a belt rail |90 isl secured to the lower parts of the outer posts and extends therebetween. The lower parts of the frame members |83 are attached to the belt rail |90, preferably by the bolts |92. It is evident from Fig. 4 that the means associated with the belt rail |90 to connect the inner frame members |83 and the outer posts is not intended to resist the vertical thrust but merely to prevent horizontal movement, the vertical loads being taken entirely at the upper ends of the inner frame members |83. The gutter |16 has an outwardly extending flange |93 and upwardly extending reilange |94 interposed between the inner frame members |83 and the belt rail |90.

The lower parts of the sheets |81 are secured to the gutter |16 by any suitable means, such as by the self-tapping screws |96.v Side lining |91,

preferably ply-wood or other form of wood, is attached to the inner frame members |83 in riat- Insulation |66 "is placed` wise rennen with the sheets m, the side wan iiueLGf being formed between the lining |91' and the"outwardly projecting panels |89 in the sheets |81. posed between the lining |91 and the 'shet"|01.

In Fig. 9, a modified means is shown to prevent pendulum action of the inner. frame members |83 and sheets |81. No belt rail is provided, but in place thereof straps 200 are secured to the lower 'parts of the inner frame members |83 and also tothe floor stringers |10, |64. It is pointed out that in a construction as shown in Fig. 9, a continuous insulation blanket |99 may extend 'from the floor D into the side walll B. There is thus no break iny the insulation blanket and no opportunity for heat leakage from the exterior of the car to the interior. A

The outer corner post 20 is preferably a AW- section rnember 203 having angularly disposed armsfz'ili' 20S. The inner corner post 201 ispref- ,erably a similar member posed arms 209, 2|0 parallel respectively withv .the angularly disposed arms of the outer post and having angularly dis- Metallic veneer sheets |98 maybe -inter-"' dinally extending inner side plate spaced inwardly from lthe upper parts of said posts, in-

sulating means arranged to secure said side plate to certain of said posts, spaced apart substantially vertical frame members suspended from said side plate, lining secured to said frame members and means to brace the lower ends of said frame members against lateral movements.

2. In a refrigerator car, a wall having spaced apar-t substantially vertical posts adjacent the exterior thereof, a longitudinally extending inner side plate spaced inwardly from the upper parts of said posts, means arranged to secure said side plate to -one of said posts comprising a wooden block interposed between said side plate and lsaid last mentioned post, a bracket secured to said last mentioned post which provides a substantially horizontal seat for said block and member extending laterally rfrom said side plate X arranged to overiie said block, spaced apart substantially vertical frame members suspended spaced therefrom. This permits an insulation blanket 2|2 to extend continuously from `the side wall B of the car into the end wall C of the car, the space in which the blanket is confined being somewhat tortuous so as tohold said blanket in position. One of the arms 209 of the inner corner post201 provides a vbacking for the side linins |91 and the flange 2M on the arm 209 of the inner corner post 201 provides a backing for theend lining 2li.

. The partition 25 is preferably formed of a plate 21 with horizontally disposed corrugations 28 and lining 2 |1 disposed on each side of the plate 21 'in spaced relation thereto so that an vinsulation blanket 2|8 may be placed between the plate 21 and each lining 2|1. Nailing strips 220 are preferably disposed in certain of the corrue gations 28 to compress the insulation 2|8 theref between, thereby Vholding said insulation in place and also to provide supports for the lining 2|1. The ceiling 223 of the car extends only to the partition lining 2|1 thereby leaving a space be- Y tween the ceiling 223 and the `plate 21 so that."

a roof insulation blanket 224 -may extend downwardly between the plate 21 and the partition lining 2|1 and/or so that a partition insulation blanket 226 may extend upwardly into the spacebetween 4the ceiling 223 and the outer roof sheets |1. In a similar manner the floor 229 extends only to the partition lining 2|1 so that the insulation 230 may be continuous between the floor D and the partition 25. Also, at the side of the car, a space is provided between the side lining |91 and the plate 21 for the extension of an insulation blanket 233 continuously between the side wall B and the partition 25. It is apparent that the insulation of the partition 25 extends continuously into the insulation in the roof A, the floor D and both side walls B. This condition exists on each side of the partition 25 so that the two compartments '2l i the car are thereby well insulated .from eachother.

' The accompanying drawings illustrate the preferred form of the invention,` though it is to be understood that the invention is not limited to the exactdetails of construction shown and de--w'-` scribed, as it is obvious that various modiflcations thereof, within the scopeof the claims, will occur to persons skilled in the art. I claim: l. In a refrigerator car, a wall having spaced ."apart substantially vertical posts, a longitu from' said side plate, lining secured to said frame members and means to brace the lower ends of said'frame members against lateral movement.

dinally extending trough interposed between said frame members and said `metallic floor sheets. 1

v4. In a refrigerator car, a wall having spaced apart substantially vertical posts, a longitudinally extending inner side platel spaced inwardly fromsthe upper parts of saidposts, rinsulating means arranged to secure said V'side yplate to certain of said posts,spaced apart submembers suspended stantially vertical frame from said side plate, lining secured to said frame members and meansto brace the lower ends of said frame members against lateral move- `ment vcomprising structural means interposed between .the lower parts' of said posts and s aid frame members.

5..In a refrigerator car, a wall having spacedk I apart substantially vertical posts, a floor, a longi-l tudnally extending inner side plate spaced inwardly from the upper parts of said posts, insulating means arranged to secure said side plate to one of said posts, spaced apart substantially vertical frame members suspended from said side plate, a metallic sheet secured to said frame members, an outwardly projecting panel in said sheet, lining disposed in spaced relation to said panel to form a flue dinally .extending inner side plate spaced in-` wardly-fromv the upper parts of saidposts, linsulating means-arranged to secure said side plate to one of said posts, spaced apart substantially vertical frame members suspended from said side plate, .lining secured tosaid frame members and meansto brace the lower ends of said frame membersagainst Vlate-ral movement comprising therebetween and means to k, brace Lthe lower .ends of said frame members against lateral movement. .f

6. In :if-refrigerator car, a wall having spaced "apart substantially vertical posts, a` longituthe exterior of said wall, brackets carried by certain of said posts and including inwardly projecting legs, refrigerant containers, and means to support said containers including wood means resting upon said legs, and outwardly projecting legs overlying and supported by said Wood means. v

20. In a refrigerator car, an insulated wall including a plurality of posts disposed adjacent the exterior of said wall, brackets carried by certain of said posts and including inwardly projecting legs, refrigerant containers, and means to support said containers including insulating and supporting means resting upon said legs, and out- 

